Dr. MacCall's Research Page

Active research in atmospheric turbulence also takes place in the atmospheric science department.  The stable atmospheric boundary-layer exhibits significant complexity due to the interactions between several phenomena over multiple scales .  Using the National Taiwan University-Purdue University Non-hydrostatic model with higher-order turbulence closure schemes, simulations are probing the role of internal gravity waves as an excitation mechanism for isolated layers of turbulent mixing.  These gravity waves may be generated from shear layers inside or outside the boundary-layer or from topography.  The goal is to shed light on the poorly-understood energetics surrounding the formation of turbulent structures in stable environments.